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Stihl Blower jamming up


WML13's Avatar
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11-20-17, 03:28 PM   #1  
Stihl Blower jamming up

I have a Stihl Blower Model BG86/c That ran out of fuel today. When I went to re start it, the recoil starter would not rotate the engine to start it, until I turned the blower on its side and then back upright. It then started and ran OK. I took it inside to see what came loose, but I could not see anything obvious from the outside. I took out the spark plug and I could see the piston moving up and down. but if I turned it on its side it locks up. Is this fixable? Is it worth fixing? It is out of warranty but I have always used Stihls oil.

 
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11-20-17, 06:25 PM   #2  
Since it runs OK and just locks up based on how you hold it, I would say the engine is OK and the blower fan has the problem. There is likely a side thrust washer allowing too much side play. Probably a low dollar part for the fix.

 
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11-20-17, 07:02 PM   #3  
Stihl Blower

I guess I'll go after it on the fan side and see what's behind it.

About the only engine I haven't had apart this season. Here we go....

 
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11-20-17, 07:22 PM   #4  
Could it be something rolling around or was rolling around and got caught in the fan ?

Exploded views.... Stihl/diagrams/bg-86-c/


~ Pete ~

 
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11-21-17, 08:03 AM   #5  
Stihl Blower

I thought of that too, but I could not find anything rolling around in the fan cage from the cage side. It could be behind it, the fan) but I have to get things apart to see it.

 
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11-21-17, 08:23 AM   #6  
Stihl products are not very DIY Friendly; but I think the recoil starter depends on a couple spring loaded pawls or dog legs and one of them may have become loose and is flopping around inside the housing:

Maybe you'll find a kindly Stihl Dealer who'll sell you the dog you need; even though he,s not supposed to do that . . . . or you can look for "one" or "two" on-line, once you know exactly what you're looking for.

 
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11-21-17, 09:15 AM   #7  
Stihl Blower jamming up

Are any of the parts in your pic right behind the fan? The fan isn't moving out and back, but something behind it is moving when I turn it on its side....

 
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11-21-17, 09:39 AM   #8  
The parts he's showing are part of the pull start. # 7, 8 and 9.

Name:  stihl.JPG
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11-21-17, 09:39 AM   #9  
Those are recoil starter parts. They would be around the starter rope.............. Just like Pete showed you.

 
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11-21-17, 09:47 AM   #10  
Still Blower Jamming up

Everythig is in place on that side of theS Engine. Something is moving, or shifting behind the fan. hoping there is a shim or spacer behind the fan?

 
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11-22-17, 12:42 PM   #11  
Stihl Blower Jamming upTh

Well, removal of the fan allowed a torx head bolt to fall out of the back side of the fan case. When i tried to put it back it would not tighten up, so I not only had a bolt that was loose but stripped threads in the mower case as well. Used some locktite on the bolt and it is all back together. Now I know what is behind the fan! thanks for all the replies. (be careful if YOU have to do it...left hand threads on the fan hold down nut and stud!)

 
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12-06-17, 08:19 AM   #12  
Stihl Blower Jamming up again

My loctite fix on the bolt stayed in place, but my blower came to another unexpected halt today. THIS time something definitely is jamming up inside the engine, (I can hear metal on metal that shouldn't be there when I rotate the flyweel or the recoil. Do any of you have access to a diagram of the internal parts of the engine on this Blower?

 
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12-06-17, 10:35 AM   #13  
That link PJ posted on the previous page has all that in it.

 
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